123107392542 has 32 divisors (see below), whose sum is σ = 260809403904. Its totient is φ = 38605424000.

The previous prime is 123107392537. The next prime is 123107392549. The reversal of 123107392542 is 245293701321.

It is a happy number.

123107392542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 123107392542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123107392549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16884 + ... + 496487.

It is an arithmetic number, because the mean of its divisors is an integer number (8150293872).

Almost surely, 2^123107392542 is an apocalyptic number.

123107392542 is an abundant number, since it is smaller than the sum of its proper divisors (137702011362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123107392542 is a wasteful number, since it uses less digits than its factorization.

123107392542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515744.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 123107392542 in words is "one hundred twenty-three billion, one hundred seven million, three hundred ninety-two thousand, five hundred forty-two".